EP1432930B1 - An actuator - Google Patents

An actuator Download PDF

Info

Publication number
EP1432930B1
EP1432930B1 EP02801280A EP02801280A EP1432930B1 EP 1432930 B1 EP1432930 B1 EP 1432930B1 EP 02801280 A EP02801280 A EP 02801280A EP 02801280 A EP02801280 A EP 02801280A EP 1432930 B1 EP1432930 B1 EP 1432930B1
Authority
EP
European Patent Office
Prior art keywords
quick release
toothing
coupling
cylindrical elements
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02801280A
Other languages
German (de)
French (fr)
Other versions
EP1432930A1 (en
Inventor
Jens Jorgen Nielsen
Howard Raarup
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linak AS
Original Assignee
Linak AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linak AS filed Critical Linak AS
Priority to DK02801280T priority Critical patent/DK1432930T3/en
Publication of EP1432930A1 publication Critical patent/EP1432930A1/en
Application granted granted Critical
Publication of EP1432930B1 publication Critical patent/EP1432930B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
    • F16D41/206—Freewheels or freewheel clutches with expandable or contractable clamping ring or band having axially adjacent coils, e.g. helical wrap-springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2084—Perpendicular arrangement of drive motor to screw axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/1836—Rotary to rotary
    • Y10T74/18368—Inertia or centrifugal transmitters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18696—Reciprocating or oscillating to or from alternating rotary including screw and nut including means to selectively transmit power [e.g., clutch, etc.]

Definitions

  • the present invention relates to a linear actuator as stated in the introductory portion of claim 1.
  • the present invention provides a different solution to operating the coupling.
  • the invention is defined by the features of claim 1.
  • the quick release according to EP 0 685 662 is longer, as one of the cylindrical elements extends a distance beyond the spring.
  • both cylindrical elements may be contained within the length of the spring, they may even be made shorter.
  • the elements may be identical. However, it is preferred that the elements abut each other and are formed with mutual guides.
  • the toothing is either be located on the curved surface of the cylinders or on the end faces thereof, the first mentioned location being preferred as this is obviously the simplest. Irrespective of the location, it will be understood that the extent of the toothing may be limited according to the desired movement. On the other hand, the simplest thing is that the toothing extends all the way around. On the curved surface, however, it may be an advantage to limit the width of the toothing according to the width of the release, such that the rest of the surface may be used for other purposes such as guide or braking surface.
  • the release may be designed as two separate elements which activate their respective cylindrical elements, but this basically complicates the construction.
  • a Y-shaped release where a first leg and a second leg are formed with a toothing which may be caused to mesh with the toothing on the one or the other cylindrical element, respectively, simplifies the construction and may be used in connection with a toothing on the curved surfaces of the cylindrical elements as well as on the end faces.
  • the release With a toothing on the end faces directed toward each other, the release is arranged between the two cylindrical elements, otherwise the release rides over the two cylindrical elements in the longitudinal direction. Axial displacement of the release will then cause the two cylinders to rotate in opposite directions.
  • the construction may be configured such that the Y-shaped release, from a retracted position, is laterally displaced into mesh with the cylindrical elements.
  • the legs have a smooth portion from their dividing point and a distance downwards and with the toothing arranged on the outer part of the legs, the release may be seated down over the cylinders, and pulling thereof may cause the toothing to mesh with the cylindrical elements.
  • the release is spring-loaded to assume a rest position, where the toothing is not in mesh with the cylindrical elements.
  • the coupling By pulling the cable the coupling may be completely disengaged, i.e. that the connection is completely interrupted. Alternatively, the coupling may be released in a controlled manner such that a partial release of the coupling is achieved, resulting in a controlled movement of the activating element.
  • the cable may be mounted directly or indirectly on the release. In case the cable in the application of the actuator is in direct extension of the release, it is expedient to mount the cable directly on the release. If, on the other hand, the direction of the cable is perpendicular to the release, then the connection may be established by a mechanism which, when being operated, converts a rotary movement or an axial movement into a movement perpendicular thereto. An example are mechanisms based on a spindle and nut or a wedge-shaped disc.
  • the main parts of the actuator are constituted by a housing 1 with a reversible electric motor 2 which, through a worm gear 3, drives a spindle 4 having a spindle nut 5 to which an activation rod 6 surrounded by an outer tube 7 is attached.
  • the actuator is of the same type as described in the international application WO 02/29284 A1 to Linak A/S, and reference is made thereto.
  • the actuator has a quick release function comprising two coupling parts 8,9, where one part 8 is fitted permanently on the spindle, while the other part 9 is fitted permanently on the worm wheel 10 of the worm gear. More precisely, the side of the worm wheel facing the front end of the actuator is constructed with a cylindrical section, upon which a bushing with a corbie-step is fixed. The coupling part 8 on the spindle is constructed with a bowl which is seated over this corbie-step. A coupling spring 11 is fitted around the two parts 8,9, extending between the side of the worm wheel and a collar on the coupling part 8. In normal conditions, the spring 11 couples the two coupling parts 8,9 together, such that the spindle is connected to the motor via the worm gear.
  • the coupling spring 11 there are two cylindrical elements 12,13 provided with an exterior toothing.
  • the ends of the coupling spring 11 are bent radially outwards and are embedded in their respective elements.
  • a Y-formed release element 14 rides with its legs over the two cylindrical elements 12,13 such that one leg is opposite to one element, while the other leg 15 is seated down over the other element 13.
  • the upper portion of the legs is smooth, while the lower portion is provided with a toothing to engage the toothing on the elements 12,13.
  • the neck 16 of the Y-formed release element 14 is controlled in a sleeve 17 fixed to the housing.
  • a spring 18 which tightens between a shoulder in the opening of the sleeve and the upper side of the release, such that the release is spring-loaded in a parking position, where the lowest, toothed part of the legs is out of contact with the two cylindrical elements 12,13.
  • a cable 19 connected to a operating, handle (not shown) is fixed to the top end of the neck.
  • the release When the handle is pulled, the release is pulled up, as shown in Fig. 2, until the lower toothed part 20 of the legs engages the respective cylindrical elements 12,13, which are then turned opposite each other.
  • the ends of the spring will then be pulled from each other, one clockwise and the other counterclockwise. In this way the spring will expand, i.e. its internal diameter will increase and the two coupling parts 8,9 are then released.
  • the spindle will then be released and can rotate freely. If the activation rod 6 is under load and if it is in an extended position, it will then be pushed inwards, depending on the load being able to overcome the self-locking ability of the spindle.

Landscapes

  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Manipulator (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Valve Device For Special Equipments (AREA)
  • Fluid-Driven Valves (AREA)
  • Actuator (AREA)
  • Scissors And Nippers (AREA)
  • Flexible Shafts (AREA)
  • Lock And Its Accessories (AREA)

Abstract

An actuator includes a quick release inserted in a transmission between an activating element ( 6 ) and a reversible electric motor ( 2 ) for releasing the activating element from the electric motor and the part of the transmission extending from the motor to the quick release. The quick release comprises two cylindrical coupling parts ( 8, 9 ) surrounded by a coupling spring ( 11 ) having outwardly bent ends, said ends being connected with their respective cylindrical elements ( 12, 13 ), seated to take part in the rotation of the coupling under normal circumstances, and wherein the two cylindrical elements ( 12, 13 ) with a release ( 14 ) are adapted to being rotated mutually to turn the ends of the spring away from each other, such that the spring ( 11 ) is released from at least one of the coupling ( 8, 9 ) for complete or partial release of the coupling. The two cylindrical elements ( 12, 13 ) are provided with an exterior toothing, and that the release ( 14 ) has a corresponding toothing ( 20 ) which may be caused to mesh therewith for mutual rotation of the cylinders.

Description

The present invention relates to a linear actuator as stated in the introductory portion of claim 1.
An actuator having such quick release function is known from EP 0 685 662 to Linak A/S, and the present invention is a further development of this.
The example given in EP 0 685 662 of operating the quick release function is based on two cylindrical elements, where one with a Y-shaped rocker arm can be urged into the other, whereby the two cylinders due to a guideway are rotated in relation to each other. As a result the coupling spring is released, as its outwardly bent ends engaging tracks in the cylinders are rotated away from each other, causing the coupling spring to expand and thereby release its grip around the cylindrical coupling parts.
The present invention provides a different solution to operating the coupling.
The invention is defined by the features of claim 1. Hereby it is possible to construct the quick release just as short as the coupling spring used. In contrast, the quick release according to EP 0 685 662 is longer, as one of the cylindrical elements extends a distance beyond the spring. According to the invention, both cylindrical elements may be contained within the length of the spring, they may even be made shorter. There is the additional advantage that the elements may be identical. However, it is preferred that the elements abut each other and are formed with mutual guides.
The toothing is either be located on the curved surface of the cylinders or on the end faces thereof, the first mentioned location being preferred as this is obviously the simplest. Irrespective of the location, it will be understood that the extent of the toothing may be limited according to the desired movement. On the other hand, the simplest thing is that the toothing extends all the way around. On the curved surface, however, it may be an advantage to limit the width of the toothing according to the width of the release, such that the rest of the surface may be used for other purposes such as guide or braking surface.
The release may be designed as two separate elements which activate their respective cylindrical elements, but this basically complicates the construction.
A Y-shaped release where a first leg and a second leg are formed with a toothing which may be caused to mesh with the toothing on the one or the other cylindrical element, respectively, simplifies the construction and may be used in connection with a toothing on the curved surfaces of the cylindrical elements as well as on the end faces. With a toothing on the end faces directed toward each other, the release is arranged between the two cylindrical elements, otherwise the release rides over the two cylindrical elements in the longitudinal direction. Axial displacement of the release will then cause the two cylinders to rotate in opposite directions.
The construction may be configured such that the Y-shaped release, from a retracted position, is laterally displaced into mesh with the cylindrical elements. When the legs have a smooth portion from their dividing point and a distance downwards and with the toothing arranged on the outer part of the legs, the release may be seated down over the cylinders, and pulling thereof may cause the toothing to mesh with the cylindrical elements.
To avoid unintentional release of the quick release the release is spring-loaded to assume a rest position, where the toothing is not in mesh with the cylindrical elements.
This presents at the same time the possibility of operating the release by means of a cable. By pulling the cable the coupling may be completely disengaged, i.e. that the connection is completely interrupted. Alternatively, the coupling may be released in a controlled manner such that a partial release of the coupling is achieved, resulting in a controlled movement of the activating element. The cable may be mounted directly or indirectly on the release. In case the cable in the application of the actuator is in direct extension of the release, it is expedient to mount the cable directly on the release. If, on the other hand, the direction of the cable is perpendicular to the release, then the connection may be established by a mechanism which, when being operated, converts a rotary movement or an axial movement into a movement perpendicular thereto. An example are mechanisms based on a spindle and nut or a wedge-shaped disc.
A linear actuator according to the invention will be described in more detail in the following with reference to the accompanying drawing, in which:
  • Fig. 1 shows a longitudinal section through the actuator,
  • Fig. 2 shows a cross-section through the actuator, and
  • Fig. 3 shows an enlarged view of the release for the quick release.
    • As shown in the drawing, the main parts of the actuator are constituted by a housing 1 with a reversible electric motor 2 which, through a worm gear 3, drives a spindle 4 having a spindle nut 5 to which an activation rod 6 surrounded by an outer tube 7 is attached. The actuator is of the same type as described in the international application WO 02/29284 A1 to Linak A/S, and reference is made thereto.
    The actuator has a quick release function comprising two coupling parts 8,9, where one part 8 is fitted permanently on the spindle, while the other part 9 is fitted permanently on the worm wheel 10 of the worm gear. More precisely, the side of the worm wheel facing the front end of the actuator is constructed with a cylindrical section, upon which a bushing with a corbie-step is fixed. The coupling part 8 on the spindle is constructed with a bowl which is seated over this corbie-step. A coupling spring 11 is fitted around the two parts 8,9, extending between the side of the worm wheel and a collar on the coupling part 8. In normal conditions, the spring 11 couples the two coupling parts 8,9 together, such that the spindle is connected to the motor via the worm gear.
    Around the coupling spring 11 there are two cylindrical elements 12,13 provided with an exterior toothing. The ends of the coupling spring 11 are bent radially outwards and are embedded in their respective elements.
    A Y-formed release element 14 rides with its legs over the two cylindrical elements 12,13 such that one leg is opposite to one element, while the other leg 15 is seated down over the other element 13. The upper portion of the legs is smooth, while the lower portion is provided with a toothing to engage the toothing on the elements 12,13.
    The neck 16 of the Y-formed release element 14 is controlled in a sleeve 17 fixed to the housing. On the neck there is a spring 18 which tightens between a shoulder in the opening of the sleeve and the upper side of the release, such that the release is spring-loaded in a parking position, where the lowest, toothed part of the legs is out of contact with the two cylindrical elements 12,13. A cable 19 connected to a operating, handle (not shown) is fixed to the top end of the neck.
    When the handle is pulled, the release is pulled up, as shown in Fig. 2, until the lower toothed part 20 of the legs engages the respective cylindrical elements 12,13, which are then turned opposite each other. The ends of the spring will then be pulled from each other, one clockwise and the other counterclockwise. In this way the spring will expand, i.e. its internal diameter will increase and the two coupling parts 8,9 are then released. The spindle will then be released and can rotate freely. If the activation rod 6 is under load and if it is in an extended position, it will then be pushed inwards, depending on the load being able to overcome the self-locking ability of the spindle.
    Although the embodiment relates to a linear actuator, it is obvious, as is also apparent from the claims, that the invention is also applicable in rotary actuators, e.g. of the type described in WO 01/17401 A1 to Linak A/S.

    Claims (6)

    1. An actuator,
      a) wherein a quick release device is inserted in a transmission between an activating element and a reversible electric motor (2) for releasing the activating element from the electric motor and a part of the transmission extending from the motor to said quick release de vice,
      b) said quick release device comprising a quick release element (14) and two cylindrical coupling parts (8,9) surrounded by a coupling spring (11) having outwardly bent ends,
      c) said ends being connected with respective cylindrical elements (12,13) seated to take part in the rotation of the coupling under normal circumstances,
      d) and wherein said two cylindrical elements (12,13) with said quick release element (14) are adapted to being rotated mutually to turn the ends of said coupling spring (11) away from each other, such that said coupling spring (11) is released from at least one of the coupling parts (8, 9) for complete or partial release of the coupling,
      characterised in that
      e) said two cylindrical elements (12, 13) have an exterior toothing provided on the curved surface of the cylindrical elements or on the end faces thereof,
      f) and said quick release element (14) has a corresponding toothing which may be caused to mesh therewith for mutual rotation of said cylindrical elements (12, 13).
    2. An actuator according to claim 1, characterized in that the width of the toothing only extends over a portion of the length of the cylinders (12, 13) .
    3. An actuator according to claim 1, characterized in that the quick release element (14) is Y-shaped, where a first leg and a second (15) leg are provided with a toothing (20) which may be caused to contact the toothing on the one or the other cylindrical element (12,13), respectively.
    4. An actuator according to claim 3, characterized in that the legs have a smooth portion from their dividing point and a distance downwards, while the toothing (20) is arranged on the distal part of the legs (15) .
    5. An actuator according to claim 4, characterized in that the quick release element (14) is spring-loaded by a spring (18) to assume a rest position, where the toothing (20) is out of mesh with the cylindrical elements (12,13).
    6. An actuator according to claim 5, characterized in that the quick release element (14) is connected directly or indirectly with a cable (19) provided with an operating handle.
    EP02801280A 2001-10-03 2002-10-02 An actuator Expired - Lifetime EP1432930B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    DK02801280T DK1432930T3 (en) 2001-10-03 2002-10-02 Actuator

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DK200101448A DK174879B1 (en) 2001-10-03 2001-10-03 Actuator
    DK200101448 2001-10-03
    PCT/DK2002/000655 WO2003033946A1 (en) 2001-10-03 2002-10-02 An actuator

    Publications (2)

    Publication Number Publication Date
    EP1432930A1 EP1432930A1 (en) 2004-06-30
    EP1432930B1 true EP1432930B1 (en) 2005-03-30

    Family

    ID=8160747

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02801280A Expired - Lifetime EP1432930B1 (en) 2001-10-03 2002-10-02 An actuator

    Country Status (9)

    Country Link
    US (1) US7047834B2 (en)
    EP (1) EP1432930B1 (en)
    JP (1) JP4163619B2 (en)
    CN (1) CN100381731C (en)
    AT (1) ATE292260T1 (en)
    DE (1) DE60203527T2 (en)
    DK (1) DK174879B1 (en)
    ES (1) ES2240851T3 (en)
    WO (1) WO2003033946A1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN102410350A (en) * 2011-08-03 2012-04-11 力纳克传动系统（深圳）有限公司 Quick-release driver

    Families Citing this family (19)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US8181546B2 (en) * 2004-10-15 2012-05-22 Linak A/S Linear actuator
    GB0514392D0 (en) * 2005-07-13 2005-08-17 Huntleigh Technology Plc Actuator assembly and override control system
    WO2007006314A1 (en) 2005-07-13 2007-01-18 Linak A/S Actuator assembly and bed
    PL1902236T3 (en) 2005-07-13 2016-11-30 Actuator with means for determining the position of an activation element
    US7934459B2 (en) * 2005-09-20 2011-05-03 Brian Frazier Ergonomic workstation with raising and lowering elements
    JP5097551B2 (en) * 2005-09-28 2012-12-12 株式会社ミツバ Linear actuator
    TWM296325U (en) * 2005-12-27 2006-08-21 Jaeger Ind Co Ltd Linear transmission device with quick-release function
    AU2007260348B2 (en) * 2006-06-13 2011-06-02 Linak A/S Actuator
    WO2008005050A2 (en) * 2006-06-30 2008-01-10 I-Trust Better Life Corp. Support frame for a lift chair
    JP5225599B2 (en) * 2007-03-30 2013-07-03 株式会社ミツバ Linear actuator for bed
    US7659647B2 (en) * 2007-06-20 2010-02-09 I-Trust Better Life Corp Linear actuator
    DE212008000062U1 (en) 2007-09-27 2010-12-23 Linak A/S linear actuator
    EP2232100B1 (en) * 2008-01-12 2012-10-31 Linak A/S Linear actuator
    JP5738884B2 (en) 2009-12-04 2015-06-24 リナック エー／エス Linear actuator
    TWM400533U (en) * 2010-10-25 2011-03-21 Moteck Electric Corp Release device for electric pushing rod
    JP6587679B2 (en) * 2014-08-19 2019-10-09 リナック エー／エス Linear actuator
    EP3228486B1 (en) * 2016-04-06 2020-05-06 Lg Electronics Inc. Safety device for vehicle
    CN111712655B (en) 2018-03-08 2023-05-09 利纳克有限公司 Linear actuator
    CN113557369B (en) 2019-03-13 2024-07-05 利纳克有限公司 Linear actuator

    Family Cites Families (15)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2881619A (en) * 1957-04-23 1959-04-14 Richard J Fox Coaxial control rod drive mechanism for neutronic reactors
    US3258985A (en) * 1964-03-23 1966-07-05 Jordan Controls Inc Control apparatus for valve actuator
    DE1921252B2 (en) * 1969-04-25 1973-03-01 Betzing, Rudolf, 4270 Altendorf-Ulfkotte SCREW GEAR FOR MECHANICAL CONTROLS, IN PARTICULAR BRAKE FANS
    US4715315A (en) * 1983-03-29 1987-12-29 Burford Corp. Dispenser for particulate material
    US4858481A (en) * 1985-05-13 1989-08-22 Brunswick Valve & Control, Inc. Position controlled linear actuator
    US5117700A (en) * 1991-02-25 1992-06-02 Ross-Hime Designs, Incorporated Miniature linear actuator
    DK86292A (en) * 1992-06-30 1993-12-31 Linak As LINEAR ACTUATOR
    US5329657A (en) * 1992-10-21 1994-07-19 Stryker Corporation Quick release coupling for head section of a hospital bed
    DK171715B1 (en) 1994-05-31 1997-04-01 Linak As Linear actuator
    GB9415648D0 (en) * 1994-08-03 1994-09-21 Rotork Controls Differential drive linear actuator
    DK151096A (en) * 1996-12-23 1998-07-17 Linak As Linear actuator
    NL1007296C2 (en) * 1997-10-16 1999-04-19 Skf Ind Trading & Dev Modular actuator, as well as caliper with such an actuator.
    DE20008415U1 (en) * 2000-05-11 2001-09-13 CAMERON GmbH, 29227 Celle Actuator
    EP1322876B1 (en) 2000-10-03 2005-08-10 Linak A/S A linear actuator
    DE50110185D1 (en) * 2001-01-12 2006-07-27 Tente Gmbh & Co Kg ROLE

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN102410350A (en) * 2011-08-03 2012-04-11 力纳克传动系统（深圳）有限公司 Quick-release driver
    CN102410350B (en) * 2011-08-03 2014-08-27 力纳克传动系统（深圳）有限公司 Quick-release driver

    Also Published As

    Publication number Publication date
    DE60203527T2 (en) 2006-02-09
    US7047834B2 (en) 2006-05-23
    WO2003033946A1 (en) 2003-04-24
    JP2005536689A (en) 2005-12-02
    US20040194564A1 (en) 2004-10-07
    EP1432930A1 (en) 2004-06-30
    JP4163619B2 (en) 2008-10-08
    ATE292260T1 (en) 2005-04-15
    DK200101448A (en) 2003-04-04
    ES2240851T3 (en) 2005-10-16
    CN100381731C (en) 2008-04-16
    CN1564917A (en) 2005-01-12
    DE60203527D1 (en) 2005-05-04
    DK174879B1 (en) 2004-01-19

    Similar Documents

    Publication Publication Date Title
    EP1432930B1 (en) An actuator
    JP5225599B2 (en) Linear actuator for bed
    EP2499397B1 (en) Linear actuator
    US6286183B1 (en) Caster with securing device
    EP2199513B1 (en) Adjusting device having a spindle drive
    AU2006286941B2 (en) Actuator
    AU2005293979B2 (en) A linear actuator
    US4759587A (en) Manual override for power recliner seat screw jack
    EP1211150A3 (en) Electric parking brake manual override
    EP1157921B1 (en) Integrated twist-grip gear changer
    EP2250401A1 (en) Actuator
    AU2014204418A1 (en) Handle arrangement for a covering for architectural openings
    US7950511B2 (en) Vehicle seat with a device for a seat height adjustment mechanism thereof, and device for seat height adjustment mechanism of a vehicle seat
    JP2018527524A (en) Space-saving ratchet unit with freewheel
    EP3032020A1 (en) Actuator device for automatically activating the vehicle door of a motor vehicle
    JP5530583B2 (en) Parking brake release mechanism
    US20060081079A1 (en) Linear drive with emergency adjustment possibility
    ITTO20030106U1 (en) LINEAR ELECTROMECHANICAL SCREW ACTUATOR FOR A PARKING BRAKE
    AU2002362936A1 (en) An actuator
    JP5004221B2 (en) Stretch absorption structure of operation wire
    ATE298391T1 (en) ACTUATING DEVICE OF A UNCOUPLING DEVICE FOR A GEARED MOTOR DRIVE OF A LOCKING OR SUN PROTECTION DEVICE
    KR100412310B1 (en) Electric tooth-cleaning device
    EP0924124A1 (en) Hand brake locking device
    JPH0546748Y2 (en)
    JP4981627B2 (en) Linear actuator

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20040331

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

    AX Request for extension of the european patent

    Extension state: AL LT LV MK RO SI

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    17Q First examination report despatched

    Effective date: 20040830

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: CZ

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: TR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: SK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: FI

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: EE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050330

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    REF Corresponds to:

    Ref document number: 60203527

    Country of ref document: DE

    Date of ref document: 20050504

    Kind code of ref document: P

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050630

    Ref country code: BG

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050630

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: NV

    Representative=s name: TROESCH SCHEIDEGGER WERNER AG

    REG Reference to a national code

    Ref country code: SE

    Ref legal event code: TRGR

    REG Reference to a national code

    Ref country code: DK

    Ref legal event code: T3

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050908

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20051002

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051003

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2240851

    Country of ref document: ES

    Kind code of ref document: T3

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DK

    Payment date: 20051027

    Year of fee payment: 4

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051031

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20051031

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    ET Fr: translation filed
    26N No opposition filed

    Effective date: 20060102

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: MM4A

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20061031

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: ES

    Payment date: 20080916

    Year of fee payment: 7

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: NL

    Payment date: 20081017

    Year of fee payment: 7

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: CH

    Payment date: 20081224

    Year of fee payment: 7

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: IT

    Payment date: 20081010

    Year of fee payment: 7

    REG Reference to a national code

    Ref country code: NL

    Ref legal event code: V1

    Effective date: 20100501

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20100501

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20091031

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20091031

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20110310

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20091002

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20110309

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20091003

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 14

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 15

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20161027

    Year of fee payment: 15

    Ref country code: GB

    Payment date: 20161019

    Year of fee payment: 15

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: SE

    Payment date: 20161027

    Year of fee payment: 15

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 16

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 60203527

    Country of ref document: DE

    REG Reference to a national code

    Ref country code: SE

    Ref legal event code: EUG

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20171002

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20171002

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20180501

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20171003

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 17

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20211021

    Year of fee payment: 20